Last updated: July 2, 2025
In Korosten, Ukraine, staying aware of the UV Index is crucial for protecting your skin and overall health. As a city characterized by a Dfb climate, residents are exposed to varying levels of UV radiation throughout the day, with peak levels reaching as high as 8 around noon. Understanding these UV levels can help you prevent sunburn and long-term skin damage, especially during the sunniest hours. By staying informed and taking appropriate precautions, you can enjoy the warm Ukrainian sun while safeguarding your skin's health.
The UV Index throughout the day presents a dynamic landscape of sun exposure. Starting off at a mild 1 at 7:00 AM, the intensity gradually rises, hitting 2 by 8:00 AM and 3 by 9:00 AM. The real peak emerges at 12:00 PM and 1:00 PM, where it reaches a robust 8—a signal to seek shade and cover up! As the afternoon progresses, the index gently declines to 6 by 3:00 PM, before tapering off further to 2 by 6:00 PM, and finally returning to a cool 1 by 7:00 PM. This data reminds us to be sun-smart during those critical midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index varies significantly throughout the year, indicating how intense the sun's ultraviolet radiation can be. From January to February, the exposure is classified as low with an index of 2 and a burn time of 45 minutes. As spring approaches, March and April see an increase to a moderate index of 4 and 5, respectively, with burn times dropping to 30 minutes. The summer months—May, June, and July—are high-risk, particularly June and July, where the index peaks at very high levels of 8, necessitating protective measures after just 15 minutes of sun exposure. Even in August and September, the index remains in the high range at 7 and 6, respectively, with reduced burn times of 25 minutes. As fall approaches, October returns to a moderate index of 3, followed by a return to low levels in November and December. Visitors and residents should be particularly cautious from May through September, ensuring adequate sunscreen application and protective clothing during peak sun hours to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Korosten | 2 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 2 |
| Kyiv UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Kharkiv UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Dnipro UVI | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 |
| Donetsk UVI | 2 | 3 | 5 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Odessa UVI | 2 | 3 | 5 | 7 | 8 | 9 | 8 | 8 | 7 | 4 | 3 | 2 |